- Wide application: Suitable for workpieces with hardness less than 65HRC, such as stainless steel, aluminum plate, carbon steel, thin iron plate, insulating plate, PVC plate, wood board, etc. - Efficiency: It has a -piece design, which makes the chips generated during the chamfering process more convenient, and will not delay work efficiency due to tool blockage. - Grinding function: The blade can be ground, and a more convenient maintenance method allows the tool to be ground without unloading. - Ease of use: The automatic through-hole chamfering cutter can quickly trim and chamfer both sides of the hole in a few seconds. - High-speed steel: Excellent material, capable of processing various hard metals, and improved blades double the tool life. Specifications: Product Name:Countersunk Drill Type:3 Flute 90 Degree Size :6.3/8.3/10.4/12.4/16.5/20.5mm+3mm Drill Length:44-64mm Color:Silver Material:HSS Quantity:7PC Package Included: 7pcs Countersunk drill bit
Detail Pictures: